Compound ΔHf° (kJ/mol) CH3OH(l) –238.7 O2(g) 0.00 CO2(g) –393.5 H2O(l) –285.8 How many grams of methanol must be combusted to raise the temperature of 441 g of water from 19.5°C to 44.16°C? Assume that the transfer of heat from the methanol flame to the water is 100% efficient.
Compound ΔHf° (kJ/mol) CH3OH(l) –238.7 O2(g) 0.00 CO2(g) –393.5 H2O(l) –285.8 How many grams of methanol must be combusted to raise the temperature of 441 g of water from 19.5°C to 44.16°C? Assume that the transfer of heat from the methanol flame to the water is 100% efficient.
Chemistry & Chemical Reactivity
10th Edition
ISBN:9781337399074
Author:John C. Kotz, Paul M. Treichel, John Townsend, David Treichel
Publisher:John C. Kotz, Paul M. Treichel, John Townsend, David Treichel
Chapter5: Principles Of Chemical Reactivity: Energy And Chemical Reactions
Section5.4: The First Law Of Thermodynamics
Problem 5.5CYU: Nitrogen gas (2.75 L) is confined in a cylinder under constant atmospheric pressure (1.01 105...
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Question
| Compound | ΔHf° (kJ/mol) |
|---|---|
| CH3OH(l) | –238.7 |
| O2(g) | 0.00 |
| CO2(g) | –393.5 |
| H2O(l) | –285.8 |
How many grams of methanol must be combusted to raise the temperature of 441 g of water from 19.5°C to 44.16°C? Assume that the transfer of heat from the methanol flame to the water is 100% efficient.
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